Displaying 20 results from an estimated 1000 matches similar to: "Get constants of undefined types in IR"
2019 Sep 03
2
Get constants of undefined types in IR
Hi Tim,
My mistake not including the llvm-dev, excuse me. affinityElement.__bits[0] worked fine for me, thank you. I am new in using the API for Constants and I am facing the error "incomplete type is not allowed" on the last last of below code: Type * ET = IntegerType::getInt64Ty(I.getContext()); unsigned long size = cpuAffinityVector.size(); ArrayType * AT = ArrayType::get(ET,size);
2017 Jun 05
2
Build problems
Hello,
Could someone please tell me why LLVM and clang downloaded from here:
svn co http://llvm.org/svn/llvm-project/llvm/trunk llvmsvn co http://llvm.org/svn/llvm-project/cfe/trunk clang
and generated using cmake:
cmake -G "Visual Studio 15 2017" ../llvm
does not compile in Visual Studio?
I am using Batch Build in Visual Studio and I have selected only ALL_BUILD project to build as
2017 Jun 06
2
Question
Thank you. So the ABI in llvm will be "gnu" for all Linux distributions?
On Monday, June 5, 2017 11:39 PM, Tim Northover <t.p.northover at gmail.com> wrote:
On 5 June 2017 at 11:54, Iulia Stirb <iulia_s24 at yahoo.com> wrote:
> Can you also please tell me how can I find out the ABI (application binary
> interface)?
Could you send your messages with a smaller
2019 Sep 18
2
How to debug passes
Iulia,
You need to check the contents of the hello.ll (or hello.bc) file rather
than the input *.c file - ultimately that's what opt consumes.
Try compiling without any optimisations:
clang -O0 -emit-llvm -S hello.c -c -o hello.ll
-Andrzej
On 18/09/2019 11:34, iulia_s24 wrote:
> Hi,
>
> Actually I copy-pasted step 5 from the article in which I found the
> solution, in the text
2017 Jun 05
2
Question
Can you also please tell me how can I find out the ABI (application binary interface)?
Thanks,Iulia
On Monday, June 5, 2017 8:58 PM, Bruce Hoult <bruce at hoult.org> wrote:
grep name /proc/cpuinfo
Then look up the model number in
https://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors
On Mon, Jun 5, 2017 at 8:41 PM, Iulia Stirb via llvm-dev <llvm-dev at
2019 Sep 10
3
Question about using multiple functions in a Function pass
Hi all,
I would want to know if from the runOnFunction method of a Function pass, other functions in IR, except for the one received as parameter, can be obtained as well, from a call instruction, as follows:
Function F = dyn_cast<Function>(callInst);
Or do I need a Module pass to work in IR with multiple functions from input source code? If so, it is accepted to have O(n^3) complexity in a
2019 Sep 16
2
How to debug passes
Hi,
Could you please confirm the following steps for debugging a pass?
1. copy your pass into llvm/lib/Transforms/Hello/Hello.cpp
2. name you pass Hello
3. insert debug messages like:
errs() << "Visiting function " << F.getName();
4. get LLVM bitcode: clang -O3 -emit-llvm hello.c -c -o hello.bc5. disassemble the bitcode:
llvm-dis hello.bc
6. run the pass on
2017 Jun 08
2
Question
I want to cross-compile using clang and I have to specify the following triple: <arch><sub>-<vendor>-<sys>-<abi>I know that sub-architectures ("sub" in the triple) for x86_64 Intel Xeon processors could be v2 for ivy bridge or v3 for haswell or v4 etc. Could you please answer: which version of sub-architecture is considered sandy bridge for Intel® Xeon®
2015 Dec 16
2
LLVM and parallelization
Hi,
I know LLVM provides thread-level automatic parallel support using OpenMP (see http://blog.llvm.org/2015/05/openmp-support_22.html), but it is not clear for me which of the following is correct?
1. Clang inserts in the source code OpenMP compiler directives, so, it auto-parallelizes the serial source code provided as input or2. Clang can compile manually written parallel source code that uses
2017 Jun 05
2
Question
Hello,
1. Can you please tell me how can I find the type of my Intel Xeon?I see in LLVM code that Intel Xeon processors can be of type "core2", "penryn", "westmere", "skylake".
2. I also see that "skylake" can be a type and a subtype as well.How can I find out the subtype of my architecture?
Looking forward for you answer. Thank you.Iulia
On
2015 Dec 16
2
Instruction scheduling done before or after register allocation
Hi,
I have read the steps of code generation from here: The LLVM Target-Independent Code Generator — LLVM 3.8 documentation
| |
| | | | | | | |
| The LLVM Target-Independent Code Generator — LLVM 3...Instruction Selection Instruction Selection is the process of translating LLVM code presented to thecode generator into target-specific machine instructions. |
| |
| View on llvm.org
2019 Sep 18
2
How to debug passes
> opt -load libdummypass.so -dummypass hello.ll
Looks like you are loading a shared library different from "LLVMHello.so".
did you change the name of the compilation unit from "Hello.cpp" into
"dummypass.cpp"?
(As asked previously by Andrzej) did you register the dummy pass?
> RegisterPass<DummyPass> X("dummypass",
2017 Jun 04
2
Question
Hello,
Could someone please answer the following question:
Does LLVM support code generation for Intel Processors? Which Intel processors are supported? I am interested especially in Intel Xeon Processor, but you can give me information about the others as well.
Thank you,Iulia
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2017 May 06
2
LLVM and Pthreads
Hello,
I know clang supports -pthread option (here). Does this mean I can call pthread routines inside llvm code and which pthread library is used, the one for Linux OS or the one for Windows?
Thank you.Iulia
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2013 May 03
2
[LLVMdev] set of integers to metadata
Hello everyone,
I want to pass a set of integers using metadata but I don't know how. I
have tried:
the integers are in array[]
*1. *
LLVMContext& C = is->getContext();
Value* values[size];
for(int gy=0;gy<size;gy++){
values[gy]=ConstantInt::getSigned(Type::getInt64Ty(C),array[gy]);
}
*is->setMetadata("path",MDNode::get(C,values));*
failes when setMetadata(),
2017 Oct 20
2
How to create a 64 bit ConstInt having a value of -1?
I tried the following:
- ConstantInt::get(Type::getInt64Ty(Ctx), APInt(0xFFFFFFFFFFFFFFFF, 64,
false))
- ConstantInt::get(Type::getInt64Ty(Ctx), APInt(-1, 64))
I am receiving the following error: Assertion `NumBits <= MAX_INT_BITS &&
"bitwidth too large" failed
--
Thanks & Regards,
Dipanjan
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2013 May 03
0
[LLVMdev] set of integers to metadata
I also tried the following, with no compilation errors, but segfault, core
dumped:
*LLVMContext& C = is->getContext();
Value* values[size];
for(int gy=0;gy<size;gy++){
values[gy]=ConstantInt::getSigned(Type::getInt64Ty(C),array[gy]);
}
llvm::ArrayRef<Value*> bla = values[size];
is->setMetadata("path",MDNode::get(C,bla));*
On Fri, May 3, 2013
2016 Mar 29
2
JIT compiler and calls to existing functions
That seems to work, thanks! The specific code I ended up with to call
int64_t print(int64_t) looks like:
auto f = builder.CreateIntToPtr(
ConstantInt::get(builder.getInt64Ty(), uintptr_t(print)),
PointerType::getUnqual(FunctionType::get(
builder.getInt64Ty(), {builder.getInt64Ty()}, false)));
return builder.CreateCall(f, args);
On Mon, Mar
2011 May 18
3
[LLVMdev] access array problem
Hi,
I want to access an array in my instrumentation code. For example:
GlobalVariable:
int *counter; //counter the number of load/store operations in run-time
int *counterArray; //record the load/store addresses
//increase the counter if a load/store is performed
std::vector<Constant *>index(2);
index[0] = Constant::getNullvalue(Type:getInt32Ty(Context));
index[1] =
2017 Sep 27
1
Build error
Hello,
I am building LLVM with ninja on Linux environment and I continue to have the error below. I am thinking that the cause might be my PC not having sufficient RAM memory. In this sense, I extended my swap memory with a swap file (90GB), but it didn't solved the problem. Should I add more physical RAM memory to my PC, or is there any software based solution I can try first?
Thank you and